Hydrostatic Release Unit (HRU) Hammar for Sale
Safety is an inseparable aspect of ship operations, whether for merchant vessels, passenger ships, fishing boats, workboats, or offshore industrial fleets. One of the essential safety equipment that must be considered is the Hammar H20 Hydrostatic Release Unit (HRU). This device is designed to assist in the automatic release of liferafts when a vessel sinks, allowing the raft to float to the surface for use in emergency situations.
We offer Hammar H20 Hydrostatic Release Units (HRU) for ship safety equipment and maritime industry needs. The Hammar H20 is recognized as one of the practical and lightweight hydrostatic release solutions, designed to support compliance with international safety standards, including SOLAS regulations.
What Is the Hammar H20 Hydrostatic Release Unit (HRU)?
The Hammar H20 Hydrostatic Release Unit is a maritime safety device that uses seawater hydrostatic pressure to automatically release liferafts. Under normal conditions, the liferaft is stored and secured on a special bracket aboard the vessel. However, when the ship experiences serious leakage, capsizing, or sinking, the liferaft risks being pulled underwater if still attached to the vessel.
This is where the HRU becomes critically important. When the device reaches a certain depth, water pressure activates its internal mechanism. This mechanism releases the liferaft's securing system from its mounting. Once released, the liferaft can float to the surface, aiding in the rescue of crew and passengers.
The Hammar H20 is one of the most widely used HRU types for liferaft storage systems. This product combines a release mechanism, a strong white sling, and a weak link or breaking connection. The combination of these components helps ensure the liferaft release process occurs safely, in a controlled manner, and in accordance with maritime safety principles.
Function of the Hammar H20 Hydrostatic Release Unit
The primary function of the Hammar H20 SOLAS HRU is to provide additional protection for liferafts in the event of vessel sinking. In emergency situations, crew members may not always have sufficient time to manually release the liferaft. Conditions can become even more difficult if the ship experiences extreme tilting, fire, severe damage, or rapid sinking.
With the Hydrostatic Release Unit, the liferaft does not rely solely on manual crew action. When the vessel descends below the sea surface and the HRU reaches its activation depth, water pressure triggers the release system. The liferaft can then detach from the ship's mounting and rise to the water surface.
The operating principle of this device utilizes hydrostatic pressure. The deeper the unit is submerged, the greater the pressure it receives. The Hammar H20 is designed to activate at a release depth of approximately 1.5 to 4 meters. This range is an essential part of SOLAS safety requirements for hydrostatic liferaft release systems.
A yellow label is located on the top of the unit as a visual indicator. This label enables ship crew, safety officers, and technicians to easily identify the device and conduct routine inspections. Regular visual inspections are important to ensure the unit remains in good condition, has not exceeded its service life, and is properly installed on the liferaft system.
Advantages of the Hammar H20 SOLAS
The Hammar H20 is a relevant choice for ship operators because it offers several advantages for maritime safety applications. One of these is compatibility for use with liferafts with capacities ranging from 6 to 150 persons. This capacity range allows the unit to be used on various vessel types and operational needs.
This product also features a compact design with a weight of approximately 283 grams. The lightweight design facilitates installation on liferaft brackets without adding excessive burden to the storage system. Despite its light weight, the unit is designed to perform emergency release functions with a reliable mechanism.
Another advantage is the USCG/EC Approved certification. This approval demonstrates that the device is designed to meet applicable maritime safety requirements. For shipping companies, vessel owners, fleet managers, and ship operators, the use of standardized safety equipment is an essential part of operational readiness and compliance with safety inspections.
The Hammar H20 also uses a white sling with a minimum breaking strength of 15 kN. Additionally, the unit is equipped with a weak link with a breaking strength of 2.2 ± 0.4 kN in accordance with SOLAS regulations. The weak link plays an important role in ensuring the liferaft can safely detach from the vessel after the deployment or inflation process takes place.
General Specifications of the Hammar H20 HRU
The following are the general specifications of the Hammar H20 Hydrostatic Release Unit that should be known before making a purchase:
| Specification | Description |
|---|---|
| Product Name | Hydrostatic Release Unit (HRU) Hammar H20 |
| Function | Automatic liferaft release when vessel sinks |
| Approval | USCG / EC Approved |
| Release Depth | 1.5 to 4.0 meters |
| Reference Standard | SOLAS |
| White Sling Breaking Strength | Minimum 15 kN |
| Weak Link Breaking Strength | 2.2 ± 0.4 kN |
| Unit Weight | Approximately 283 grams |
| Liferaft Capacity | 6 to 150 persons |
Why Is the Hammar HRU Important for Ships?
In ship safety systems, liferafts are vital equipment for supporting evacuation when a vessel can no longer be used. However, liferafts will only function optimally if they can be released and deployed at the right time. The Hammar H20 Hydrostatic Release Unit helps provide an automatic backup system when manual release is not possible.
The use of Hammar HRUs is highly relevant for vessels operating in open seas, inter-island shipping routes, port areas, fishing zones, and offshore industrial locations. In addition to supporting crew and passenger safety, the availability of equipment such as HRUs also helps companies maintain the readiness of ship safety equipment.
Before purchasing, ensure you select a product that matches your liferaft capacity, raft mounting system, vessel certification requirements, and the device's service life. HRUs are safety components that require regular inspection and replacement according to regulations or the expiration date indicated on the unit.
Hammar Hydrostatic Release Unit H20 for Sale
If you require a Hammar H20 Hydrostatic Release Unit for ships, liferafts, maritime project needs, or ship safety equipment procurement, please contact our Admin and Sales team. We are ready to assist with product information, stock availability, procurement needs, and the best price quotations.
To obtain special pricing information and other maritime safety products, you can also visit our official website:
Admin & Sales Contact
- Admin/Sales A: 0815-8888-344
- Admin/Sales B: 0811-1262-220
- Admin/Sales C: 0811-1751-503
- Admin/Sales D: 0815-8683-8888
Office Address
Perkantoran, Jl. Taman Palem Mutiara No. 1 Blok A18, RT.7/RW.14, Cengkareng Timur, Kecamatan Cengkareng, Kota Jakarta Barat, Daerah Khusus Ibukota Jakarta 11730.
FAQ Hammar H20 Hydrostatic Release Unit
1. What is the function of the Hammar H20 Hydrostatic Release Unit?
The Hammar H20 Hydrostatic Release Unit functions to automatically release the liferaft when the vessel sinks and the device reaches a certain activation depth below the water surface.
2. At what depth does the Hammar H20 HRU operate?
The Hammar H20 is designed to operate at depths of approximately 1.5 to 4 meters in accordance with SOLAS safety requirements.
3. Can the Hammar H20 be used for all liferaft sizes?
The Hammar H20 SOLAS can be used for liferafts with capacities of approximately 6 to 150 persons. However, always ensure compatibility with the type of liferaft and the mounting system used on your vessel.
4. What is the weak link on the Hammar H20 HRU?
The weak link is a breaking connection in the HRU system designed to break at a specific load. This component helps ensure the liferaft can detach from the vessel after the release and deployment process takes place.
5. Does the Hammar H20 HRU need to be replaced periodically?
Yes. The Hydrostatic Release Unit is a safety device with a defined service life. The unit needs to be inspected regularly and replaced according to the expiration date, manufacturer specifications, and ship safety procedures.
6. Where can I purchase the Hammar H20 Hydrostatic Release Unit?
You can contact our Admin and Sales team via 0815-8888-344, 0811-1262-220, 0811-1751-503, or 0815-8683-8888. You can also visit the official websites of Alnindo and Alnindo Indonesia for information and price quotations.